Many people should respect based on their own beliefs. Some people are worried about the environment and animal food safety and want to be vegetarians themselves. Here, I want to say that pregnant women, babies and children, children do not recommend a whole meal. For special people, we must readjust the designed diet from our own nutrition, find potential nutritional problems as soon as possible, and improve the diet structure in time.
The most deficient nutrients are vitamin B 12, high-quality protein, N-3 unsaturated fatty acids, iron and zinc. Vegetarians adjust from pregnancy. I met a complete couple. In the case of pre-pregnancy physical examination, I found that female anemia and vitamin B 12 deficiency. I have asked them to modify the formula immediately and adjust their health during pregnancy. Because iron deficiency can be fatal to the fetus, it is easy to cause premature delivery, low birth weight and even asphyxia of the fetus. Vitamin B 12 deficiency can lead to macrocytic anemia, nervous system injury, depression, memory loss, limb tremor and high level of cysteine. These serious consequences are unbearable.
Eating too much meat can easily lead to excessive fat intake, excessive energy intake, obesity and cardiovascular diseases. The fat content in meat is relatively high, especially saturated fatty acids, which can significantly increase plasma cholesterol and low-density lipoprotein, so excessive meat intake will lead to obesity and hyperlipidemia. Not eating meat at all can lead to cardiovascular diseases, such as atherosclerosis. Why? Because not eating meat for a long time may lead to vitamin B 12 deficiency. When vitamin B 12 is deficient, the same type of cysteine is converted into methionine, which may lead to the risk of serum homoinsulin level and increase the risk of arteriosclerosis. B 12 exists almost exclusively in animal foods, and its food sources are mainly meat, animal liver, fish, poultry, shells, eggs and milk foods. Fermented bean products contain trace vitamin B 12, but its absorption is far from animal food.
Not eating meat at all can easily lead to iron deficiency anemia. Because heme is the best source of iron, heme iron is mainly red meat. Iron in plant food is non-heme iron, and its absorption and utilization rate is low.